v3.22.4
Organization and Significant Accounting Policies - Error Corrections and Prior Period Adjustments (Details)
$ / shares in Units, shares in Millions, $ in Millions
 12 Months Ended
Jun. 10, 2022
Dec. 31, 2022
USD ($)
$ / shares
shares
Dec. 31, 2021
USD ($)
$ / shares
shares
Dec. 31, 2020
USD ($)
$ / shares
shares
Dec. 31, 2019
Jan. 01, 2020
USD ($)
Organization, Consolidation and Presentation of Financial Statements [Abstract]            
Stock split ratio 4   4 4 4  
New Accounting Pronouncements or Change in Accounting Principle [Line Items]            
Deferred tax assets   $ 341.2 $ 290.5 [1] $ 307.7    
Long-term senior convertible notes   1,197.7 1,981.8 [1] 2,033.1    
Common stock   0.4 0.4 [1] 0.4    
Additional paid-in capital   2,258.1 2,108.7 [1] 1,726.5    
Retained earnings (accumulated deficit)   479.9 138.7 [1] (78.2)    
Loss on extinguishment of debt   0.0 (0.1) [2],[3] 0.0 [2],[3]    
Interest expense   (18.6) (18.8) [2] (17.7) [2]    
Income before income taxes   390.8 256.8 [2] 297.9 [2]    
Income tax expense (benefit)   49.6 39.9 [2] (251.8) [2]    
Net income   $ 341.2 $ 216.9 [2],[3] $ 549.7 [2],[3]    
Basic net income per share (usd per share) | $ / shares   $ 0.88 $ 0.56 [2] $ 1.46 [2]    
Diluted net income per share (usd per share) | $ / shares   $ 0.82 $ 0.53 [2] $ 1.33 [2]    
Shares used to compute diluted net income per share (in shares) | shares   427.5 428.8 [2] 420.4 [2]    
Prepaid and other current assets   $ 192.6 $ 81.6 [1]      
Current portion of long-term senior convertible notes   772.6 0.0 [1]      
Add back interest expense, net of tax attributable to assumed conversion of senior convertible notes   11.0 11.4 $ 11.1    
As Previously Reported            
New Accounting Pronouncements or Change in Accounting Principle [Line Items]            
Deferred tax assets   293.1 220.8 216.4    
Long-term senior convertible notes   1,034.9 1,702.7 1,667.2    
Common stock     0.1 0.1    
Additional paid-in capital   2,652.2 2,504.5 2,125.3    
Retained earnings (accumulated deficit)   231.1 (47.4) (202.1)    
Loss on extinguishment of debt   (0.4) (1.5) (5.9)    
Interest expense   (101.9) (100.3) (84.7)    
Income before income taxes   307.1 173.9 225.0    
Income tax expense (benefit)   28.6 19.2 (268.6)    
Net income   $ 278.5 $ 154.7 $ 493.6    
Basic net income per share (usd per share) | $ / shares   $ 0.72 $ 0.40 $ 1.31    
Diluted net income per share (usd per share) | $ / shares   $ 0.70 $ 0.39 $ 1.27    
Shares used to compute diluted net income per share (in shares) | shares   400.5 400.4 389.8    
Prepaid and other current assets   $ 191.5        
Current portion of long-term senior convertible notes   740.9        
ASU 2020-06 Adjustment            
New Accounting Pronouncements or Change in Accounting Principle [Line Items]            
Deferred tax assets   48.1 $ 69.7 $ 91.3    
Long-term senior convertible notes   162.8 279.1 365.9    
Common stock     0.0 0.0    
Additional paid-in capital   (394.1) (395.5) (398.5)   $ 242.3
Retained earnings (accumulated deficit)   248.8 186.1 123.9   $ 67.8
Loss on extinguishment of debt   0.4 1.4 5.9    
Interest expense   83.3 81.5 67.0    
Income before income taxes   83.7 82.9 72.9    
Income tax expense (benefit)   21.0 20.7 16.8    
Net income   $ 62.7 $ 62.2 $ 56.1    
Basic net income per share (usd per share) | $ / shares   $ 0.16 $ 0.16 $ 0.15    
Diluted net income per share (usd per share) | $ / shares   $ 0.12 $ 0.14 $ 0.06    
Shares used to compute diluted net income per share (in shares) | shares   27.0 28.4 30.6    
Prepaid and other current assets   $ 1.1        
Current portion of long-term senior convertible notes   $ 31.7        
Stock Split Adjustment            
New Accounting Pronouncements or Change in Accounting Principle [Line Items]            
Deferred tax assets     $ 0.0 $ 0.0    
Long-term senior convertible notes     0.0 0.0    
Common stock     0.3 0.3    
Additional paid-in capital     (0.3) (0.3)    
Retained earnings (accumulated deficit)     $ 0.0 $ 0.0    
[1] * We adjusted our 2021 amounts to reflect the simplified convertible instruments accounting guidance, which we adopted on a full retrospective basis. All periods presented have also been adjusted to reflect the four-for-one stock split. Refer to Note 1, “Organization and Significant Accounting Policies,” to the consolidated financial statements for further information.
[2] * We adjusted our 2021 and 2020 amounts to reflect the simplified convertible instruments accounting guidance, which we adopted on a full retrospective basis. All periods presented have also been adjusted to reflect the four-for-one stock split. Refer to Note 1, “Organization and Significant Accounting Policies,” to the consolidated financial statements for further information.
[3] * We adjusted our 2021 and 2020 amounts to reflect the simplified convertible instruments accounting guidance, which we adopted on a full retrospective basis. Refer to Note 1, “Organization and Significant Accounting Policies,” to the consolidated financial statements for further information.